In southern Peru, the leader of a group of former soldiers holding a police station says they will not lay down their weapons as earlier agreed.

Retired army officer Antauro Humala says the armed group has reneged on its offer because the government has violated its agreement to not mobilize troops near the police station in the Andahuaylas region.

Mr. Humala says negotiations with the government have been terminated until a higher-level commission he requested arrives from Lima. He wants a representative of the state ombudsman's office to be present.

Mr. Humala announced the group's offer to surrender on Sunday just hours after they killed four police officers in a shootout at the police station.

The group is calling for the resignation of President Alejandro Toledo, who they accuse of corruption.

Some information for this report provided by AFP and Reuters.